/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.opentoast.domain;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;

//import org.apache.commons.logging.Log;
//import org.apache.commons.logging.LogFactory;


/**
 * Base class for Model objects. Child objects should implement toString(),
 * equals() and hashCode();
 * 
 * @author <a href="mailto:jiwhiz@gmail.com">Yuan Ji</a>
 *
 */
@SuppressWarnings("serial")
@MappedSuperclass
public abstract class BaseEntity implements Serializable
{
    /**
     * Log object used by all sub classes
     */
//    protected transient Log log = null;

    /**
     * persistent unique identifier
     */
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "ID_KEY")
    private Long id;

    // -------------------------------------------------------------------------
    // Properties
    // -------------------------------------------------------------------------

    /**
     * Gets id.
     */
    public Long getId()
    {
        return id;
    }

    /**
     * Sets id.
     */
    public void setId(Long id)
    {
        this.id = id;
    }

//    public Log getLog()
//    {
//        if (log == null)
//            log = LogFactory.getLog(getClass());
//
//        return log;
//    }

    public abstract String toString();

    public abstract boolean equals(Object o);

    public abstract int hashCode();
}
